US3582234A - Method and apparatus for the calibration of tubing to provide for a desired flow rate therethrough - Google Patents

Method and apparatus for the calibration of tubing to provide for a desired flow rate therethrough Download PDF

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Publication number
US3582234A
US3582234A US841351A US3582234DA US3582234A US 3582234 A US3582234 A US 3582234A US 841351 A US841351 A US 841351A US 3582234D A US3582234D A US 3582234DA US 3582234 A US3582234 A US 3582234A
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United States
Prior art keywords
tube
flow rate
fluid
pump
therethrough
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Expired - Lifetime
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US841351A
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English (en)
Inventor
Jack Isreeli
Aaron Kassel
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Technicon Corp
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Technicon Corp
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/08—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a stream of discrete samples flowing along a tube system, e.g. flow injection analysis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1223—Machines, pumps, or pumping installations having flexible working members having peristaltic action the actuating elements, e.g. rollers, moving in a straight line during squeezing

Definitions

  • tubing in said pump or at other locations in said analysis means, having an internal diameter of less than 0.015 inch gives rise to a serious problem of clogging of such tubing by solid or semisolid materials in the nature, forexample, of agglutinates which may be present in such blood serum samples.
  • tubing with an internal diameter greater than 0.015 inch, but still small enough as to be practically compatible with said substantially reduced flow rates has proven desirable, it being understood that the fluid flow rates of interest will vary in direct proportion with the square of said internal tubing diameter.
  • Another object of this invention is the provision of method and apparatus which involve the reduction of the internal diameter of a tubing to effect calibration thereof.
  • Another object of the invention is the provision of method and apparatus which involve the stretching of elastic tubing to reduce the internal diameter thereof.
  • a further object of this invention is the provision of method and apparatus which are particularly, though by no means exclusively, adaptable for use in the calibration of the elastic, compressible pump tubes of peristaltic type pumps which are included in constant flow rate, automatic fluid sample analysis means of the type discussed above, to accurately provide for a predetermined pump flow rate.
  • the method and apparatusof the invention are applied to the calibration of the elastic, compressible pump tubes of a peristaltic pump and, under the described circumstances regarding the initial choice of the internal diameter of the tube in relation to the desired pump flow rate, would include the monitoring of the fluid flow rate through the tube upon initial operation of the pump to determine if the same coincides with the desired flow rate and, in the event the latter is exceeded, the stretching of the tube to reduce the internal diameter thereof, and accordingly the fluid flow rate therethrough, while continuing to monitor said fluid flow rate until the latter coincides with said desired flow rate.
  • This disclosure additionally makes clear that the method and apparatus of the invention are not limited to the calibration of compressible pump tubes but, rather, are applicable to the calibration of tubes which are utilized for other purposes in a fluid flow system.
  • FIGS. I and 2 are generally longitudinal cross-sectional views taken through peristaltic type pump means to illustrate the application of the method and apparatus of the invention to the calibration of the pump tubes;
  • FIG. 3 is a perspective view of the tube-mounting frame utilized in the pump of FIGS. 1 and 2;
  • FIG. 4 is a side elevational view of a tube locating and connecting nipple
  • FIG. 5 is a perspective view of a tube clamping means for, use in stretching the tube.
  • FIGS. 6 and 7 are side elevational views with parts in cross section illustrating the application of the method and apparatus of the invention to the calibration of a tube which does not form part ofa peristaltic type pump.
  • a peristaltic or compressible tube pump which may, for example, take the general form of that shown and described in US. Pat. No. 3,227,091 issued Jan. 4, 1966 to Jack Isreeli et al., is indicated generally at 10 and may be seen to comprise a roller assembly 12 which includes a chain sprocket wheel 14 and an endless chain 16 which is driveable, upon driven rotation of the former, in the indicated direction around a chain guide member 18.
  • a plurality of pump rollers 20 are disposed, as shown, with freedom for rotation at substantially equally spaced points on the endless chain 16, so as to be driveable therewith in said in-.
  • a generally rectangular pump tube-mounting frame is indicated at 22 and, as best seen in FIG. 3, comprises opposed end walls 24 and 26 having substantially aligned, pump tubemounting notches 28 and 30 formed respectively therein.
  • a compressible pump tube 32 which is made from any suitably elastic and inert material of appropriate strength characteristics in the nature, for example, of silicone rubber, is extended, as shown, across the mounting frame 22 between the pump-mounting notches 28 and 30, and it may be understood that the respective bottom walls of said notches are configured in generally semicircular manner to complement the generally semicircular configurations of the corresponding portions of the said pump tube and provide for an appropriately close pump tube-notch fit.
  • a pump platen is indicated at 34 and may be understood to be movable from an open" position thereof to the depicted closed" position thereof wherein the upper portion of the compressible pump tube fits within a nonillustrated, complementally shaped groove formed in the lower surface of the said platen and is thusly forced to conform to the shape of the inner surface 36 of the said platen groove and compressed thereby, as shown, against the pump rollers 20.
  • the inlet or upstream end of the compressible pump tube 32 would be substantially fixedly located relative to end wall 24 of frame 22 through use of a pump tube nipple 38.
  • the nipple 38 comprises a generally cylindrical central portion 40 of substantially greater diameter than the internal diameter of the pump tube 32, and having inwardly tapered end portions 42 and 44 formed to opposite sides thereof and terminating in generally planar end faces 46 and 48, respectively.
  • a bore 50 extends, as shown, between said'end faces to provide a flow passage through said nipple.
  • the nipple 38 may be made from any suitable, readily available material, it may be understood that relatively inert plastic materials in the nature, for example, of polyethylene have proven particularly satisfactory in this regard.
  • the nipple 38 is extended, as shown, into the inlet end 52 of the compressible pump tube 32 to tightly stretch the latter around the nipple central portion 40 and provide for a secure, although readily removable, pump tube-nipple attachment.
  • the nipple 38 it may be understood that movement of said pump tube inlet end portion through the notch 28 to the right, as seen in FIG. I, would be rendered impossible.
  • the compressible pump tube 32 would be chosen to have an internal diameter no smaller than that predetermined to provide the desired flow rate, it being understood that such flow rate will be dependent primarily upon the square of said internal diameter and the velocity of the respective pump rollers longitudinally of said pump tube.
  • Operation would then be commenced by driven rotation of the chain drive sprocket 14 at substantially constant, predetermined speed to provide for a substantially constant roller velocity relative to the compressible pump tube 32. Thereafter, or as soon as the steady state operational condition of the peristaltic pump 10 had been reached, monitoring of the pump flow rate would be commenced by observance of the flowmeter 56.
  • the internal diameter of the compressible pump tube 32 would be reduced, by the stretching of the said pump tube longitudinally thereof, to reduce the flow rate therethrough until such time as the said flow rate is indicated by flowmeter 56 to coincide with said desired flow rate whereupon the pump tube 32 would be clipped, if necessary, and the downstream or outlet end portion thereof fixedly secured to the frame wall 26 by the disposition therein of another nipple as indicated at 39, in the same manner described hereinabove with regard to nipple 38.
  • any convenient means in the nature, for example, of the illustrative tube clamp 60 of FIG. 5 may be utilized for this purpose. More specifically, and as seen in FIG. 5, said clamp comprises arms 62 and 64 which are pivotally connected at corresponding extremities by a pivot pin 66 extending through aligned bores provided therein.
  • Complementally shaped grooves 68 and 70 are provided in the arms 62 and 64 adjacent the corresponding other extremities thereof, and it may be understood that said grooves are sized to provide a generally cylindrical opening of a diameter which is substantially the same or, in the alternative, very slightly smaller than, the external diameter of the compressible pump tube 32 when the respective arms 62 and 64 are manually pressed together to clasp the said pump tube in the said opening.
  • coatings of any suitably abrasive material may be deposited as indicated at 72 and 74 on the surfaces of the said grooves to improve the tube gripping action thereof as should be obvious.
  • the stretching of the compressible pump tube 32 may be accomplished by the simple manual grasping of the downstream or outlet end portion thereof.
  • another elastic tube 58 may, of course, be conveniently attached to the other side of the nipple 39, again as described hereinabove, to provide a conduit for pump outlet.
  • peristaltic pump 10 which may include as many as 16 compressible pump tubes and would function to pump as many streams of series of fluid samples from advanced versions of sample supply means in the nature of those shown and described in U.S. Pat. No. 3,134,263 issued May 26', I964 to Edward B. M. DeJong, to advanced versions of fluid sample analysis means in the nature of those shown and described in U.S. Pat. No. 3,241,432 issued Mar. 22, 1966 to Leonard T.
  • pump rollers 20 might be arranged to move at a velocity of i0 inches per minute relative to the said pump tubes to provide a desired fluid sample flow rate of 25 lambda per minute without fluid sample clogging in each of the said pump tubes.
  • each of the said pump tubes would require each of the said pump tubes to have an internal diameter of 0.016 inch, and it may be understood that the latter is satisfactory from the standpoint of inhibition of fluid sample clogging of the tubes. More specifically, and as discussed hereinabove with regard to the pumping of fluid samples in the nature of blood serum samples prepared in accordance with current preparation methods, it has been determined that the use of pump tubes having an internal diameter greater than 0.015 inch is preferable to substantially inhibit the clogging thereof by solid or semisolid materials in the nature of agglutinates which may be present in the said blood serum samples.
  • silicone rubber is chosen for the said pump tubes on the basis of the eminently satisfactory elasticity and strength characteristics thereof, it may be understood that the same must, of necessity, be ordered with an internal diameter of 0.0l8 inch, since the minimum tolerances specified by the manufacturers thereof are 10.002 inch. This is, if silicone rubber tubing with an internal diameter of less than 0.0 l 8 inch were chosen and the same happened to exhibit the maximum minus 0.002 inch tolerance, such tubing would be unsatisfactory because the internal diameter thereof would be less than 0.0 l 6 inch and cannot, of course, be practically increased.
  • the flowmeter 56 will initially indicate the desired 25 lambda per minute fluid sample flow rate, whereupon the said tubing may be promptly fitted in place through the use of a nipple 39 without requiring any reduction in the internal diameter thereof as should be obvious.
  • a source of fluid at predetermined, substantially constant pressure is indicated at 80 and notched walls in the nature of frame walls 24 and 26 indicated at 82 and 84 respectively
  • a length of elastic tubing 86 may be conveniently and accurately calibrated to provide for a desired flow rate therethroughassuming, of course, that the internal diameter of tubing 86 is initially no smaller than that required to provide the desired flow rate and is practically reduceable, as by stretching, to the required dimension by the operative connection of a flowmeter 56 thereto as shown and the subsequent calibration thereof in the manner disclosed hereinabove for the calibration of pump tube 32.
  • apparatus for providing a desired flow rate through a tube of elastic material comprising, means for flowing fluid through said tube, and means for reducing the internal diameter of said tube, if the flow rate therethrough is greater than said desired flow rate, while monitoring the flow rate therethrough until the latter coincides with said desired flow rate, said reducing means comprising means for stretching said tube longitudinally thereof.
  • said means to flow fluid through said tube comprise means to pump fluid therethrough.
  • apparatus as in claim 6 wherein said means to pump fluid through said tube comprise means to progressively occlude said tube longitudinally thereof in the direction of fluid flow therethrough.
  • apparatus for providing a desired flow rate of a fluid flowing through a tube of elastic material, means for monitoring the flow rate of said fluid flowing through said tube, and means for reducing the internal diameter of said tube, if the flow rate therethrough is greater than said desired flow rate,
  • said means for reducing the internal diameter including means for longitudinally stretching said tube.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Reciprocating Pumps (AREA)
  • Joints Allowing Movement (AREA)
US841351A 1969-07-14 1969-07-14 Method and apparatus for the calibration of tubing to provide for a desired flow rate therethrough Expired - Lifetime US3582234A (en)

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US84135169A 1969-07-14 1969-07-14

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US (1) US3582234A (enrdf_load_stackoverflow)
JP (1) JPS5030849B1 (enrdf_load_stackoverflow)
BE (1) BE753392A (enrdf_load_stackoverflow)
CH (1) CH512777A (enrdf_load_stackoverflow)
FR (1) FR2051721B1 (enrdf_load_stackoverflow)
GB (1) GB1270509A (enrdf_load_stackoverflow)
NL (1) NL7009764A (enrdf_load_stackoverflow)
SE (1) SE361071B (enrdf_load_stackoverflow)
SU (1) SU398055A3 (enrdf_load_stackoverflow)

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756752A (en) * 1971-12-20 1973-09-04 G Stenner Peristaltic pump
US3816035A (en) * 1972-10-24 1974-06-11 E Malbec Peristaltic pump
US4006743A (en) * 1973-01-15 1977-02-08 The Johns Hopkins University System for continuous withdrawal of blood
US4108575A (en) * 1975-08-09 1978-08-22 Dr. Eduard Fresenius Chemisch-Pharmazeutische Industrie K.G. Obtaining desired flow rate from roller pump despite varying the hose means
US4256442A (en) * 1979-04-18 1981-03-17 Baxter Travenol Laboratories, Inc. Improved pressure plate movement system for a peristaltic pump
US4307868A (en) * 1978-11-06 1981-12-29 Cutter Laboratories, Inc. Flow control device
US4397639A (en) * 1980-04-24 1983-08-09 Ferring Arzneimittel Gmbh Device for the intermittent pulsatory application of fluid medicaments
US4398910A (en) * 1981-02-26 1983-08-16 Blake L W Wound drain catheter
WO1984000691A1 (en) * 1982-08-12 1984-03-01 American Hospital Supply Corp Linear peristaltic pumping apparatus and disposable casette therefor
US4725205A (en) * 1987-01-30 1988-02-16 Fisher Scientific Group Inc. Peristaltic pump with cam action compensator
US4728265A (en) * 1987-01-30 1988-03-01 Fisher Scientific Group Inc. Peristaltic pump with cam action compensator
US4735553A (en) * 1985-04-30 1988-04-05 Lucien Vidal Straight peristaltic pump for conveying concrete or the like
US4878622A (en) * 1988-06-17 1989-11-07 Ransburg Corporation Peristaltic voltage block
WO1989012508A1 (en) * 1988-06-17 1989-12-28 Ransburg Corporation Peristaltic voltage block
US5018945A (en) * 1989-12-14 1991-05-28 Baxter International Inc. Accurate peristaltic pump
US5031258A (en) * 1989-07-12 1991-07-16 Bauer Industries Inc. Wash station and method of operation
US5134079A (en) * 1989-03-27 1992-07-28 International Technidyne Corp. Fluid sample collection and delivery system and methods particularly adapted for body fluid sampling
US5154357A (en) * 1991-03-22 1992-10-13 Ransburg Corporation Peristaltic voltage blocks
US5193750A (en) * 1991-03-22 1993-03-16 Ransburg Corporation Peristaltic voltage block roller actuator
US5222880A (en) * 1991-10-11 1993-06-29 The Regents Of The University Of Michigan Self-regulating blood pump
US5281112A (en) * 1992-02-25 1994-01-25 The Regents Of The University Of Michigan Self regulating blood pump with controlled suction
US5360414A (en) * 1992-10-08 1994-11-01 Yarger Richard J Tube for draining body cavities, viscera and wounds
US5370510A (en) * 1992-06-12 1994-12-06 Bee Chemical Company Liquid metering system
US5380172A (en) * 1993-12-29 1995-01-10 Ulbing; Otmar Peristaltic action precision pump filler
US5411210A (en) * 1990-11-26 1995-05-02 Ransburg Corporation Automatic coating using conductive coating materials
US5458578A (en) * 1991-12-02 1995-10-17 I-Flow Corporation Infusion pump tube
US5718687A (en) * 1995-09-11 1998-02-17 Deco Delta Gmbh Extra-corporal blood pump
US5781942A (en) * 1989-07-12 1998-07-21 Sloan Valve Company Wash stations and method of operation
US6478789B1 (en) 1999-11-15 2002-11-12 Allegiance Corporation Wound drain with portals to enable uniform suction
US6655934B2 (en) * 2001-03-21 2003-12-02 Innovent, L.L.C. Inverted peristaltic pumps and related methods
US20040249360A1 (en) * 1999-03-22 2004-12-09 Spehalski Stephan R. Steerable wound drain device
US20060228240A1 (en) * 2005-03-30 2006-10-12 Lancer Partnership, Ltd. Method and apparatus for a linear peristaltic pump
US20110060284A1 (en) * 2009-09-10 2011-03-10 Tyco Healthcare Group Lp Compact peristaltic medical pump
US20120138833A1 (en) * 2010-12-02 2012-06-07 Joseph Matteo Multi-Function Eccentrically Actuated Microvalves and Micropumps
US20140241923A1 (en) * 2011-09-21 2014-08-28 Sanofi-Aventis Deutschland Gmbh Peristaltic Pump
US20140318660A1 (en) * 2011-11-11 2014-10-30 Connectors Verbindungstechnik Ag Pump Hose for a Peristaltic Pump
US20160310362A1 (en) * 2015-04-23 2016-10-27 B. Braun Medical Inc. Compounding device, system, kit, software, and method
US9863837B2 (en) 2013-12-18 2018-01-09 OptiScan Biomedical Coporation Systems and methods for detecting leaks
CN110198912A (zh) * 2016-10-26 2019-09-03 三得利控股株式会社 注出泵及液体分配器

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2349047A2 (fr) * 1976-04-22 1977-11-18 Malbec Edouard Pompe peristaltique et tube pour celle-ci
JPS5472140U (enrdf_load_stackoverflow) * 1977-10-27 1979-05-22

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US114981A (en) * 1871-05-16 Improvement in faucets or supply-cocks
US2935028A (en) * 1957-08-05 1960-05-03 Technicon Instr Pumps
US3034504A (en) * 1958-11-21 1962-05-15 Galasyn Inc Flow meter for an intravenous injection unit
US3095175A (en) * 1961-01-19 1963-06-25 Iketani Taisho Gaseous fuel regulating device for liquefied gas lighters
US3163176A (en) * 1962-03-14 1964-12-29 Barth Engineering And Mfg Comp Apparatus for sensing and controlling fluid flow in the form of discrete free-falling drops
US3206157A (en) * 1961-12-20 1965-09-14 Charles R Reading Feed control valve
US3227091A (en) * 1963-10-04 1966-01-04 Technicon Instr Compressible tube pump
US3353567A (en) * 1964-07-15 1967-11-21 Technicon Corp Resilient pump tube assembly

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US114981A (en) * 1871-05-16 Improvement in faucets or supply-cocks
US2935028A (en) * 1957-08-05 1960-05-03 Technicon Instr Pumps
US3034504A (en) * 1958-11-21 1962-05-15 Galasyn Inc Flow meter for an intravenous injection unit
US3095175A (en) * 1961-01-19 1963-06-25 Iketani Taisho Gaseous fuel regulating device for liquefied gas lighters
US3206157A (en) * 1961-12-20 1965-09-14 Charles R Reading Feed control valve
US3163176A (en) * 1962-03-14 1964-12-29 Barth Engineering And Mfg Comp Apparatus for sensing and controlling fluid flow in the form of discrete free-falling drops
US3227091A (en) * 1963-10-04 1966-01-04 Technicon Instr Compressible tube pump
US3353567A (en) * 1964-07-15 1967-11-21 Technicon Corp Resilient pump tube assembly

Cited By (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756752A (en) * 1971-12-20 1973-09-04 G Stenner Peristaltic pump
US3816035A (en) * 1972-10-24 1974-06-11 E Malbec Peristaltic pump
US4006743A (en) * 1973-01-15 1977-02-08 The Johns Hopkins University System for continuous withdrawal of blood
US4008717A (en) * 1973-01-15 1977-02-22 The Johns Hopkins University System for continuous withdrawal and analysis of blood
US4108575A (en) * 1975-08-09 1978-08-22 Dr. Eduard Fresenius Chemisch-Pharmazeutische Industrie K.G. Obtaining desired flow rate from roller pump despite varying the hose means
US4307868A (en) * 1978-11-06 1981-12-29 Cutter Laboratories, Inc. Flow control device
US4256442A (en) * 1979-04-18 1981-03-17 Baxter Travenol Laboratories, Inc. Improved pressure plate movement system for a peristaltic pump
US4397639A (en) * 1980-04-24 1983-08-09 Ferring Arzneimittel Gmbh Device for the intermittent pulsatory application of fluid medicaments
US4398910A (en) * 1981-02-26 1983-08-16 Blake L W Wound drain catheter
WO1984000691A1 (en) * 1982-08-12 1984-03-01 American Hospital Supply Corp Linear peristaltic pumping apparatus and disposable casette therefor
US4493706A (en) * 1982-08-12 1985-01-15 American Hospital Supply Corporation Linear peristaltic pumping apparatus and disposable casette therefor
US4735553A (en) * 1985-04-30 1988-04-05 Lucien Vidal Straight peristaltic pump for conveying concrete or the like
US4728265A (en) * 1987-01-30 1988-03-01 Fisher Scientific Group Inc. Peristaltic pump with cam action compensator
US4725205A (en) * 1987-01-30 1988-02-16 Fisher Scientific Group Inc. Peristaltic pump with cam action compensator
US4878622A (en) * 1988-06-17 1989-11-07 Ransburg Corporation Peristaltic voltage block
WO1989012508A1 (en) * 1988-06-17 1989-12-28 Ransburg Corporation Peristaltic voltage block
US4982903A (en) * 1988-06-17 1991-01-08 Ransburg Corporation Peristaltic voltage block
US5134079A (en) * 1989-03-27 1992-07-28 International Technidyne Corp. Fluid sample collection and delivery system and methods particularly adapted for body fluid sampling
US5031258A (en) * 1989-07-12 1991-07-16 Bauer Industries Inc. Wash station and method of operation
US5781942A (en) * 1989-07-12 1998-07-21 Sloan Valve Company Wash stations and method of operation
US5018945A (en) * 1989-12-14 1991-05-28 Baxter International Inc. Accurate peristaltic pump
US5411210A (en) * 1990-11-26 1995-05-02 Ransburg Corporation Automatic coating using conductive coating materials
US5154357A (en) * 1991-03-22 1992-10-13 Ransburg Corporation Peristaltic voltage blocks
US5193750A (en) * 1991-03-22 1993-03-16 Ransburg Corporation Peristaltic voltage block roller actuator
US5222880A (en) * 1991-10-11 1993-06-29 The Regents Of The University Of Michigan Self-regulating blood pump
US5458578A (en) * 1991-12-02 1995-10-17 I-Flow Corporation Infusion pump tube
US5281112A (en) * 1992-02-25 1994-01-25 The Regents Of The University Of Michigan Self regulating blood pump with controlled suction
US5370510A (en) * 1992-06-12 1994-12-06 Bee Chemical Company Liquid metering system
US5360414A (en) * 1992-10-08 1994-11-01 Yarger Richard J Tube for draining body cavities, viscera and wounds
WO1995018308A1 (en) * 1993-12-29 1995-07-06 Otmar Ulbing Peristaltic action precision pump filler
US5380172A (en) * 1993-12-29 1995-01-10 Ulbing; Otmar Peristaltic action precision pump filler
US5718687A (en) * 1995-09-11 1998-02-17 Deco Delta Gmbh Extra-corporal blood pump
US20040249360A1 (en) * 1999-03-22 2004-12-09 Spehalski Stephan R. Steerable wound drain device
US7658735B2 (en) 1999-03-22 2010-02-09 Spehalski Stephan R Steerable wound drain device
US20100198171A1 (en) * 1999-03-22 2010-08-05 Spehalski Stephan R Steerable wound drain device
US8834453B2 (en) 1999-03-22 2014-09-16 Allegiance Corporation Steerable wound drain device
US8545481B2 (en) 1999-03-22 2013-10-01 Allegiance Corporation Steerable wound drain device
US6478789B1 (en) 1999-11-15 2002-11-12 Allegiance Corporation Wound drain with portals to enable uniform suction
US6655934B2 (en) * 2001-03-21 2003-12-02 Innovent, L.L.C. Inverted peristaltic pumps and related methods
US20060228240A1 (en) * 2005-03-30 2006-10-12 Lancer Partnership, Ltd. Method and apparatus for a linear peristaltic pump
US8241018B2 (en) 2009-09-10 2012-08-14 Tyco Healthcare Group Lp Compact peristaltic medical pump
US20110060284A1 (en) * 2009-09-10 2011-03-10 Tyco Healthcare Group Lp Compact peristaltic medical pump
US8882481B2 (en) 2009-09-10 2014-11-11 Covidien Lp Compact peristaltic medical pump
US20120138833A1 (en) * 2010-12-02 2012-06-07 Joseph Matteo Multi-Function Eccentrically Actuated Microvalves and Micropumps
US20140241923A1 (en) * 2011-09-21 2014-08-28 Sanofi-Aventis Deutschland Gmbh Peristaltic Pump
US10309387B2 (en) * 2011-09-21 2019-06-04 Sanofi-Aventis Deutschland Gmbh Peristaltic pump
US20170096994A1 (en) * 2011-09-21 2017-04-06 Sanofi-Aventis Deutschland Gmbh Peristaltic Pump
US9695813B2 (en) * 2011-09-21 2017-07-04 Sanofi-Aventis Deutschland Gmbh Peristaltic pump
US20140318660A1 (en) * 2011-11-11 2014-10-30 Connectors Verbindungstechnik Ag Pump Hose for a Peristaltic Pump
US9086178B2 (en) * 2011-11-11 2015-07-21 Connectors Verbindungstechnik Ag Pump hose for a peristaltic pump
US9863837B2 (en) 2013-12-18 2018-01-09 OptiScan Biomedical Coporation Systems and methods for detecting leaks
US20160310362A1 (en) * 2015-04-23 2016-10-27 B. Braun Medical Inc. Compounding device, system, kit, software, and method
CN110198912A (zh) * 2016-10-26 2019-09-03 三得利控股株式会社 注出泵及液体分配器
EP3533754A4 (en) * 2016-10-26 2020-06-10 Suntory Holdings Limited EXHAUST PUMP AND LIQUID DISPENSER
US10954113B2 (en) 2016-10-26 2021-03-23 Suntory Holdings Limited Discharge pump and liquid dispenser

Also Published As

Publication number Publication date
SU398055A3 (enrdf_load_stackoverflow) 1973-09-17
NL7009764A (enrdf_load_stackoverflow) 1971-01-18
SE361071B (enrdf_load_stackoverflow) 1973-10-15
DE2034526B2 (de) 1973-02-15
JPS5030849B1 (enrdf_load_stackoverflow) 1975-10-04
DE2034526A1 (de) 1971-02-18
GB1270509A (en) 1972-04-12
FR2051721B1 (enrdf_load_stackoverflow) 1973-04-27
CH512777A (de) 1971-09-15
BE753392A (fr) 1971-01-13
FR2051721A1 (enrdf_load_stackoverflow) 1971-04-09

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